2101211200012 has 24 divisors (see below), whose sum is σ = 3795903820800. Its totient is φ = 1016670241680.

The previous prime is 2101211200007. The next prime is 2101211200013. The reversal of 2101211200012 is 2100021121012.

It is a super-4 number, since 4×2101211200012⁴ (a number of 50 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2101211199965 and 2101211200001.

It is not an unprimeable number, because it can be changed into a prime (2101211200013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2539383 + ... + 3263569.

It is an arithmetic number, because the mean of its divisors is an integer number (158162659200).

Almost surely, 2^{2101211200012} is an apocalyptic number.

It is an amenable number.

2101211200012 is a deficient number, since it is larger than the sum of its proper divisors (1694692620788).

2101211200012 is a wasteful number, since it uses less digits than its factorization.

2101211200012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 747621 (or 747619 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 2101211200012 its reverse (2100021121012), we get a palindrome (4201232321024).

The spelling of 2101211200012 in words is "two trillion, one hundred one billion, two hundred eleven million, two hundred thousand, twelve".